/*重置外边距*/
html, body {
    margin: 0;
}

* {
    line-height: 1;
}

/*使body铺满窗口*/
body {
    width: 100vw;
    height: 100vh;
}

/*定义flex布局*/
.row {
    display: flex;
    box-sizing: border-box;
}

/*让子元素自适应宽度*/
.col-auto {
    flex: 0 0 auto;
}

/*让子元素占满宽度*/
.col {
    flex: 1 0;
}

/*让子元素垂直对齐*/
.align-items-center {
    align-items: center;
}

@font-face {
    font-family: 'txtw7';
    src: url("./fonts/txtw7.ttf") format("truetype");
}